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- From: jps@netcom.com (John Serafin)
- Subject: Text scroll benchmark
- Message-ID: <14gnjd+.jps@netcom.com>
- Date: Sun, 30 Aug 92 21:54:36 GMT
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- Summary: proposal for text scroll benchmark
- Keywords: text scroll benchmark window
- Lines: 68
-
-
- I am proposing a text scrolling benchmark. Although most computers can
- scroll text much faster than it is possible to read, scrolling delay can
- be quite objectionable during interactive modem sessions. Scrolling text
- in a window in a GUI environment can take up so much CPU time that full
- modem throughput is not realized. I have made some measurements and my
- results are at the end of this article. My motherboard is an ISA 486
- from Intel with an Intel chipset. For some reason, vector oriented
- graphics run faster on Taiwanese motherboards with the same SVGA card.
- Therefor other people with ProDesigner IIs may get better results.
-
- I would be particularly interested in seeing how various 8514, XGA, and TIGA
- cards compare to SVGA cards and whether different types of cards are faster
- for different CPUs or CPU speeds. It should also be interesting to see how
- DesqView and various UNIX workstations stack up. Please note that font
- width and height can have a dramatic effect on scrolling speed.
-
- I have made some measurements using the first FAQ file for OS/2 2.0, it is
- available on ftp-os2.nmsu.edu as faq20.txt and is 52117 bytes and 1025 lines
- long. I would find interesting data for any plain text file on the order
- of 50,000 bytes and 1,000 lines, but tabulated data should all be based on
- the same file. At the start of each test, the window should be empty except
- for the first line. If the speed is improved by using a RAM disk or disk
- cache, go ahead and do so. Please mail your results to me and I will
- summarize to the net.
-
- I use 4DOS and 4OS2, so timing is easy, e.g.,
-
- i:\>cls
- i:\>timer ^ type faq20.txt ^ timer
-
- or
-
- [i:\]cls
- [i:\]timer & type faq20.txt & timer
-
- The characters per second are simply the number of bytes in the file
- divided by the time required to type it. To save space, I have omitted
- the verticle resolution and list the number of bits per pixel rather than
- the number of colors. The Char column lists the font height and width
- in pixels.
-
- OS Session Size CPU Video Card Driver CPS Char
-
- OS/2 OS2FS 25X80 486/33 Orchid Pro IIs Orc VGA 1024 4 11752
- OS/2 DOSFS 25X80 486/33 Orchid Pro IIs Orc VGA 1024 4 9978
- DOS FS 25x80 486/33 Orchid Pro IIs 7777
- OS/2 OS2FS 50X80 486/33 Orchid Pro IIs Orc VGA 1024 4 6296
- OS/2 DOSFS 50X80 486/33 Orchid Pro IIs Orc VGA 1024 4 5748
- DOS FS 50X80 486/33 Orchid Pro IIs 4942
- OS/2 OS2WIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 2213 8x8
- OS/2 OS2WIN 25X80 486/33 Orchid Pro IIs Orc VGA 1024 4 2213 8x8
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 1775 8x8
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 1524 10x8
- OS/2 OS2WIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 1359 14x8
- OS/2 OS2WIN 25X80 486/33 Orchid Pro IIs Orc VGA 1024 4 1346 14x8
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs Orc VGA 1024 4 1173 14x8
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 1106 10x6
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 1062 12x5
- OS/2 OS2WIN 25X80 486/33 Orchid Pro IIs Orc VGA 640 8 921 8x8
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 907 14x6
- OS/2 DOSWIN 25X80 486/33 Orchid Pro IIs IBM VGA 640 4 890 16x5
- OS/2 OS2WIN 50X80 486/33 Orchid Pro IIs Orc VGA 1024 4 714 14x8
- OS/2 DOSWIN 50X80 486/33 Orchid Pro IIs Orc VGA 1024 4 660 14x8
- OS/2 OS2WIN 25X80 486/33 Orchid Pro IIs Orc VGA 640 8 541 14x8
- --
- John P. Serafin | Operating a bicycle is more like driving than riding.
- jps@netcom.com | Operating an automobile is more like riding than driving.
-